Change making, indicating, and registering machine.



No; 864,185. A PATENTED AUG. 27, 1907.

' F. 0.0SBORN. i

CHANGE MAKING, INDICATING, AND REGISTERING MACHINE.

APPLIUATION FILED DEO.10,1891.

, 4 11 SHEETSSHEET.2.

" iwvEs Es I LW/EWTOQB 6 M WWW 6 W PATENTED AUG. 27, 1907.

P. d. OSBORN. CHANGE MAKING, INDIGATING, AND REGISTERING MACHINE.

' APPLIOATION FILED DE 0.10,1891. I

11 SHEETS-FHHEET 3.

17V VEWTOQ $62M; 6%

No. 864,185. PATENTED AUG. 27, 1907. v F. 0; OSBORN.

CHANGE MAKING, INDIGATING, AND REGISTERING'MAGHINEL APPLICATION I'ILED DEO. 10, 189 1:

11 sums-SEEM lI YIWESSES No. 864,185. PATENTED AUG. 27, 1907.

F. G. OSBORN. v

CHANGE MAKING, INDI'OATINGLAND REGISTERING MACHINE.

APILIOAI'ION FILED DBO.10, 1891.

WITNESSES J? w G lISHEETS-SHEET 5.

PATENTED AUG. 27, 1907.

Y .No. 864,18b.

F. '0. OSBORN. I CHANGE MAKING,INDIGATING', AND REGISTERING MAGHiNB.

AP-LIoA' IoN FILED DBO.10, 1891.'

mama .5.

N'b. 8 4,135. PATENTIED AUG/27, 190v.

. F. G.1OSBORN. I CHANGE MAKING, INDIOATING, AND REGISTERING MACHINE.

APPLICATION FILED DEO.10,1B91.'

ll SHEETS--SHEET 7.

864,185. PATENTED AUG. 27, 1907. P. c. OSBORN. CHANGE MAKING, INDIGATING, IAND REGISTERING' MA-GHINE.

v 11 snnnrs-snnm 8.

APPLICATION FILED D110. 10, 1891.

Q I mate:

Witness es No.864,185. I PATENTEDIAU-GLQI'L 1907.

F. G. OSBORN.

CHANGE MAKING, INDIOATING,. AND REGISTERING MACHINE.

' APPLICATION FILED DBO. 1.

189 11 SHEETS-SHEET a.

PATENTED AUG. 27, 1907.

I F. GHOSBORN GHANGB MAKING, INDIGATING, AND REGISTERING MACHINE.

11 SHEETS-SHEET 1 0.

APPLIQATION-I'ILBD DEO.10, 1891.

IJVVEWTOQ 1 0 I vy www/ai' WITZVESSES I PATENIED AUG. 27, 190?.

. P. G. OSBORN. CHANGE MAKING, INDIGATING, AND REGISTERING MACHINE.

APPLIUATION FILED 1330.10, 1891.

- II'SEEIITS-SHEET 11.

g; ay I W'HWESSES w wawr/s PATENT ornren; j

. .nar norsoeosiionn; QFfiETROIT,MIGHIGLM 'ASSiGNOR, BY nnsnn ASSIGNMENTS, TO THE NATIONAL CASH nneisrnaoonmnr, ornarron, 01110, A CORPORATION or OHIO,

(INOQRPQRATEDJN. 906.

"ensues MAKING, INDICATING, AND nners rnarnsmsonmn.

n ises; 1B5.

Specification of Letters Patent.

, hpplicstionfiled December 10,1891- Serial No. 414.612.

Patented Aug. 2 1907.1'

To all whom itmay concerns, I j

Be it known that I, Fimnors O. OSBORN, a citizen of the United States, residing at Detroit, in the county of Wayne and State of Michigan, have invented'certain new andnseful Improvements in Change Making, Indieating, and Registering Machines, oi which the'following is a specification. r I I i a This invention relates to an automatic change making mechanism, and has among its principal objects to provide a machine which will automatically compute or predetermine the amount of change to be delivered when a certain amount of money is paid in tocover a purchase ofa certain amount.-. That is, manipulative means, such as keys,-are provided which may bexoperatod by the clerk or operator according to the amoimt deposited or paid in and also according to'the amount of purchase, with cooperating mechanism whereby the machine itself automatically computes or controls the ejection of the proper change to be delivered equivalent to the difference between the amount. paid in and the amount of purchase. This mechanism therefore entirelydispenscs with any mental calculation in making change and insures absolute accuracy.

Another object is rt combine the above change-mak- 25, ing mechanism with a cash register and indicator, whereby the machiiie shall register, and if desired also indicate, the amount of the purchascpr sale as well as contrdl the ejection oi the proper amount of change; I and still further to combine therewith a change indicating deviceto indicate to the customer or the clerk the amount of change to be returned. Of conrsethe change- .maker may be used separately, or combined with the cash register and indicator, with or without the change "indicator. I

YA further object is to construct this automatic change I" making mechanism is such manner that it will have changev controlling or selecting devices with means for "controlling the said devices in two opposite senses, therebyjplacing selecting mechanismin condition to determine the amount of change to be indicated or ejected.

' Another'ob'joct is to construct the change indicating i devicein such manner that it may also serve as aselecting or controlling mechanism for the change delivering devices, having separate parts independently adjust i abl e [or purchase and deposit amounts successively, the final position of the indicatordetermining the amount 01 change to he delivered.

A further object is to provide an ejecting or delivering 50 mechanism adjustable to deliver different desired numbersof coins or checks at-a single operation, together with various other improvements in the money ejecting mechanism.

A; iurther object is to provide a, delivering mechanisminormally inaccessible to the operator, with means for compelling a regular operation of the machine hefore access to the delivering mechanism may be had.

An'additional object is to provide an improved devicefor compelling a complete operation of the mechanism, which may be termed a full-stroke device. (30

With these and incidental objects in view the invention consists in certain novel features of construction and combination of parts, the essential elements of which are set forth in appended claims and a preferred form of embodiment of which is hereinafter described with reference to the drawings which accompany and form part of this specification.

Of said drawings: Figure 1. shows a plan of the regis-. ter and change indicating and change making mechanisms. Fig. l is a detail view of the laterally shifting transfer rod. Figs. 2, 3 and 4 show details of mechanism connected with the change selecting devices, Fig 5 is a vertical transverse section through the machine. Figs. 6 and 7 show details of the key board. Figs. 8, 9 .and 10 show details of the change selecting mechanism. Fig. 11 shows the mechanism for controlling the select-- ing devices through the deposit mechanism. Fig. '1 2 shows the fixed cover of a coin receptacle. Fig. 13 is a development of the change selecting device showing the graduated projections for determining the amount of change. Fig. 14 is an elevation of the'leit hand end of the machine. Fig. 15 shows a flashqfor the indicators. Figs. 16, 17, 19, and 21 are forms of boxes used. to contain bills or gold coins. Fig..18shows.an elevation of the left-hand end of the machine with parts, in a different position from thatshown in Fig. 14. Figs. 22 and 23 show the multiple ejecting mechanism. Figs. 24, 25 and 26 are details of the coin holders. Figs. 27 and 28 are elevations oithe right-hand side-of the machine, Fig. 28 showing most of the parts in normal position, and Fig. 27 showing them in partly operated position. Figs. 29 and 30 are details of the full-stroke mechanism. Fig. 31 shows a detail of the transl'erdes vices for the selecting mechanism.- Fig. :32 is a detail showing the locking means'ior the selecting mechanism; Fig. 33 is a perspective of the machine in the v cabinet. Fig. 3-lis a perspective of the machine with the cabinet removed.

The change making mechanism described herein is shown in combination with cash registering devices, which combination increases the field of usefulness of the latter,but clearly eitherthe change indicating or the change making mechanism may be used sepai'ately without any cash register connection for keeping a continuous record of sales in the machine. The mechanism shown herein is adapted for use in many existing types of cash register, but it is described herein. in connection with a machine such as is shown in the patent to Osborn No. 455,111.

As a general description of the mechanisms devised for accomplishing the broad' purposes above set forth, it may be stated that a selecting or'change controlling mechanism is provided which is controlled by mzlnipulative means, such as keys, according both to the amount of purchaseand the amount deposited or paid in; and this selecting mechanism in turn controls the ejecting or delivery of the money or change. The said selecting or change controlling'means is caused to assume a certain condition under the control of said manipulative means whereby to insure the ejection of the proper amount of change represented by the difference between the amount of deposit and the amount of purchase. The purchase and the deposit mechanisms are arranged to position the selecting mechanism in accordance with the value of said devices. The ejecting devices are controlled as to their operation bythe final position or condition of this adjustable change selecting mechanism to eject the proper change.

It will be understood that the term deposit mechanism is used to refer to that part or" the machine which is controlled in accordance with the amount of money paid in by the customer, 'and the term purchase mech anism is used to mean that part of the machine controlled in accordance with the amount of the sale. With this understanding it may be said that the pur chase mechanism in the present machine comprises a series of banks of keys, each bank serving to indicate numbers from 1 to 9 inclusive. The deposit mechanism comprises a series of slides covering the various coin tubes or receptacles whereby in order to insert any deposited coin in its proper receptacle it is necessary to withdraw the cover "of the same. These covers are of course marked according to their denominational values, just as the purchase keys are marked, except that there are only covers for the particular values of subsidiary coins and bills, whereas the purchase keys are arranged in the ordinary banks in values from .l to 5). It will be understood, however, that a ny other of the well lrnown'iorms jof'manipulative means may be used for these deposit and purchase amount determining mechanisms without departing from the spirit ol the invention.

'In the present embodiment, the aforesaid change controlling mechanism comprises a series of denominational selecting devices controlled by the deposit and the purchase devices in opposite senses, the final position of these denominational selecting devices determining the amount of change to be delivered. These selecting devices are also used as change indicators, and in the form adopted herein, comprise revoluble drums or wheels, one drum for the units of cents dermminatilm, another drum for the dimes denomination, another for the units of dollars denomination, and so on. These selecting or indicating devices normally stand in zero position, so that as indicators they show a row of zeros. Then under the control of the purchase mechanism or keys, these selecting or indicating devices are moved reversely to an extent depend-em. upon the amount of sale so that they thereby are set to positions showing a complement of the amount of sale, as will be more fully explained later. Then lecting devices oppositely to their previous movement, and to an extent dependent upon the amount of deposit/so that the resultant positionrepresents and determines -.the amount of change to be delivered. In order to properly position these selecting devices, transfer mechanisms have been devised for connecting the adjacent denominational members of said sclecting devices, so that a movement of the selecting member of one denomination will produce a movement of the adjacent denominational selecting member, thereby insuring the proper resultant or final position of these selecting members under the control of both the deposit and the purchase mechanisms, as will be more fully explained hereinafter. After these change selecting devicesare brought to their final positions, the ejection of the change from themachine is controlled and caused by the operation of the cover for the money tubes or receptacles. Normally the receptaclcs are inaccessible to the operator, and it is only when the machine as a whole is operated, that they are so accessible. When. the said cover is moved,

the money delivering mechanism is operated andthe proper change ejected.

A detailed description of this machine divides'itseli into three main parts, namely, the purchase mechanism, the deposit mechanism and the mechanism for delivering change. i If the machine is to be used as a sale register only the purchase mechanism is necessary, if as a change indicator, both who purchase and deposit mechanisms are requiredl which 'i changemaking is required the ejecting n'iechanisn'i must be added to the purchase and deposit mechanisms. A detailed description of the parts will hereafter be given in the ord er named. i

The purchase keys are best shown in Fig. 5 and are indicated by reference letter P. In the machine as shown there are [our banks oi thcso keys having numbers from l to 9 on their checks and they are adapted to be separately depressed. The purchase operation consists in depressing the proper keys P and in then moving the operating handle 39 and the operating lever 38 from the position of Fig. T4 to that of Fig. 18. The operating lever 38 is mounted rigidly on shaft 88 (Fig. 5) and serves to depress a yoke having radial arms y connected by a bar Y extending under and traversing the banks of keys. For each denomination a slide is provided having notches into which a series of pawls l, 2, 3, and 4 mounted on and movable ,with yoke piece Y are adapted to engage. In the normal position of the keys theydo not extend into the path of the said pawls but when any of the keys is depressed and the yoke lowered the proper pawl will during its movement strike the depressed key, and be (rammed. toward the right as shown in Fig/1 into some one of the notches of slide s. During the remainder of the movement of the pawl it will clearly serve to carry the slide s with it. thereby a differential motion of the slides s isobtaincd.

The purchase indicating mechanism issimilar to that shbwn in the patent referred to and is operated through the chairis attached as shown in Figs. 1 and 5 to the tops of the slides 8. Near the lower end otith e said slides additional chains 8, 9, l0 and 1 1 are attached and these are connected to the change-collecting mechanism, the

s em

but it will be seen hat on Fig. 1 a series of wheels 1'5,

1'7, 19 and 2l are .vided which have a series of numhere from -0 to 9 inclusive arranged consecutively on their peripheries serving as-a change indicator. Graduated projections are on the said wheels forming the change deliverer controlling mechanism.

It will be seen that the change indicating numbers on the wheels 15, 1 7, 19 ai1d21 increase in a counter clockwisedirecti'on'as the wheels are viewed in Fig. 5 so that themovenient of the slides s under control of the pawlsand yoke Y moves the change indicators reversely, from zero, then to 9, then to 8, etc., thereby bringing them to a position such that the difference betwecn'the amount exhibited by the purchase keys and 10,000 is indicated on the said wheelsf For this reason the wheels maybe termed complement Wheels' 7 It will be seen that if all the complement wheels are in zero position as shown in Fig. 1, and any one of them is moved reversely, a movement of one step should occur in all the higher denominations of complement wheels in order to 'give the proper complement. For example, if eight cents was registered-as the purchase amount, the-complement-wheel 15 would be moved reversely from zero, then to'9, and so on for eight units until the number 2 was exhibited thereon; but, unless the higher denominations' of complement wheels were reverselymovedone step, this indication would be incorrect inasmuch'as the indicator would show mounted on the yoke piece Y as shown in Figs. 1, 2, '3

and 4. Figs. 2 and 3 show the mechanism from underneath, Fig. 2 being in normal position and Fig. 3 show- .nthrougli a pin to a--slide 14 also carried b'ythe yoke 7 also by pins.

, piece which is shaped as shown in Fig. 2 so as to give movement in one direction to a second slide 13 though not in the reverse direction, said slide 1$pro-- ducing a similar action on the third'slide 12. Slide 14 is connected to finger 5 by a pin as shown, slide 13 is connected to linger 6 and slide 12 is connected to finger Thc pawls 2 and 3' are provided with notches in which rest pins, the pin for pawl 2 being carried slide IBt-ud the pin for pawl 3 by slide 12. The result of this construction is that if pawl 1 is operated by striking a depressed key it is moved from the posi tion of Fig. 2 to the position of Fig. '3 and thereby through its connection with slide 14 moves finger 5. Slides'li and 14 and slides 12 and 13 being linked as shown, movement of pawl 1 will also produce movement of the two slides thereby rocking lingers (I and 7 aroundth'eir pivots but producing no motion of pawls 2, 3 or 4. lie key in the second bank from the right is depressed, pawl 2' will when yoke piece Yis drawn downward be moved to the right and through its notch and the pin on slide 13 will move the said slide and the slide l2'thcrcby carrying lingers (i and 7 with it, but it will be clear that neither linger 5 nor paw-1 1 will be moved" owing to the lost motion link connection between slides 13 and 14. If pawl 3 is adjusted through i the depression of a key in the third bank from the right,

pawls 1 and 2.

It will be seen that as a whole when any paw'l' oper ated it produces no effect on theother pawls but does cause movement of the fingers relating. to the higher.

denomination .of amounts. .This movement of the fingers to" the position shown in brings the, lower ends of said ringers .so that the'nf planes of movement intersect the chains 8, 9, 10 and 11 between; the tworods r. l/Vhen the yoke piece Y is given the last increment of its downward movement the pawls which have not been adjusted to the right will pass the chains, those pawls which have been so adjusted will strike the chain and double the same between the two pins, thereby causing an additional increment of movement of the complement wheels. It will be evident that this mechanism performs preciselyfthe transfer function required, that is, when ,any selecting device is moved revcrselyirom its normal zero position, it causes a reverse movement equal-in extent to one step in the selecting wheels of higher denomination, independently of whether they are actuated by their own slides or not I Details ofthe change selecting mechanism are shown in Figs. 8, 9 andlO. It liasbeen assumed in the previousfdescription that the chains were connected di-- rectly to the change indicating and selecting wheels 15, 17, 19 and 21 but this is not strictly the case. As shownin Fig. 8 each complement wheel is provided with a drum 16. partly inside the same and the chains are con'nected'to these drums 16. The hubs 201 of drums 16 extend to the radial flanges of the complement wheels and have attached thereto springs 202 the outer ends of the springs being attached to the wheels and serving when the chains cause rotation of the drums '16 to compel the complementwheels to 'followsuch rotation. In order to maintain the drums l6 and complement wheels in proper relative position, lugs 92 and 93 are provided, lugs 93 being carried on drums lb and-lugs 92 being carried on the complement 202'press the lugs 92 against thd lugs 93 and when rotation of drums 16 is caused by the movement oi'the chains the complement wheels will follow the drums because of the springs 202. The complement wheels 15, 17, I19 and 21 as will be seen iollow the movement of drums 16 in the reverse direction but may be moved independently thereof under control of the deposit mechanism. 1

Deposit 'IILCPII(LIl-ldIIl-.-*Th0 description of the deposit mechanism .may bc premised by stating that the downward movement of the operating lever 38 serves to release the main cover for the cash receptacles and until this is released the deposit mechanism is inaccessible to the operator. This main cover also serves after operation oftho deposit mechanism to cause the ejection or delivery oi the proper amount of change from the machine as the cover is returned to its normal position.

Assuming therefore that the cover has been moved so that access may be had to the deposit mechanism, ref erencc ma y be made particularly to Fig. 5. The cash receptacles which are shown in perspective in Fig. 24, have separate covers thereover preventing any doposited coins from being inserted into the receptacles untii the separate covers are moved. 'lhcsc covers are indicated by numeral 29 (Figs. 5 and 12) and are :provided with depending projections 30 actuating racks operating oiti'atcliets 28 rigidly connected to the complement wheels l5, l7, l9 and 21. The projections are so positioned as to cause a differential rotation of the complement wheels when the covers are moved rcarwardly to deposit coins. A cash receptacle and corr'esponding cover 29 will be provided for each denomination elf coins intended to be 'used with the machine and there will be corresponding projection. 30 for each of said varieties of coins. Each of the complement wheels however is provided with only one racl; 25 and in order that more than one cover 29 and projection 30 may act thereon the racks 25 are pivoted to levers 26 wl ich are 'ournaled on shaft 27 said levers J 26 being provided with a laterally extending projection 99 against which the depending projections 30 are adapted to engage. In the case of the dimesselecting wheel 17 it is clear that the ten cent, twenty live cent and lil'ty 'cent covers 29 should engage therewith,the ten cent cover moving the rack 25 one step and the'fifty cent cover moving the rack five steps. This is provided for by the difference of eirtent of the depending pro ec-tions 30 asindicated in Fig. 13 whereby more or less lost motion is given to the rack 25. It will be evi dent that in the case ol the twenty-five cent cover 29 this should produce two increments or units of motion of the dimes selecting wheels 17 and five increments ol' movement or the penny selecting wheel 15. This latter movement 01' the-penny wheel 15 may be effected by having the 25-cent cover actuate the penny selecting wheel five spaces, or the 25-cent cover may simply actuate the dimes selecting wheel two spaces and then the operator may manually actuate the 5-cent cover to move the penny selecting wheel the necessary live spaces.

i l-corresponding description of the one dollar, two dollar and five dollar covers might be given, but it is thought that the mechanism will be clearly understood without such additional-description. When the rackbars 25 are moved above described, the ratchets '28 serve ro cause a positive movement of the complement wheels and this will clearly be allowed, inasmuch as the lugs 92 ol' the complement wheels may be moved away from the lugs 93 of the drums 16, the only result being the tcnsioning of springs 202; By this means the complement selecting wheels 15, positively set in accordance with theamonnt of the deposit and are therelore clearly in position such that the amount of change desired is indicated by the numbers on the said wheels. To take a specific case, suppose a l i vc dollar bill is tendered in payment of a sale amounting to forty-three cents. when the purchase keys P representing forty-three cents. that is, l (y 3 in the first bank from the right and Key .l in the second bank are depressed and the yoke piece Y lowered"; the complement wheels are reversoly moved, the units wheels bein; reversed three steps so that the numeral 7 is shown, the dimes selecting wheel l7 being reversed steps so that the numeral 6 is shown. It being remembered that the operation of any of the pawls l, 2, '3 and 4 serve" wheels l7, 19 and 21. The complement wheel 17 will be moved one additionalseversc step so that 5 is in'rlicollars.

7, l9 and 21 are.

cated and the complement wheels 19 and 2]. will each be moved one reverse step so that each indicates 9. The complete indication on the complement selecting wheels is therefore 9957. When the five dollar cover 29 is operated the complement-wheel 19 will be moved in a positive direction five steps thereby causing it to indicate 4. The complement selecting wheels 15 and 17 will remain in their previous position but the complement. wheel 2] will be moved positively one step by the transfer mechanism not yet described in detail, to restore the zero indication originally showing thereon. The entire indication then will be (M57 and it is clear that this is the proper amount of change loi the transaction.

To provide a transfer operating in a positive direction on the complement selecting wheels the mechanisni-inFigs. l, Q'and 3]. may be employed. Directly over the complement selecting mechanism is a slr. ft provided with three pairs of pinions mounted on sleeves on the said shal't, the sleeves being separated by One pinion of each pair is wider than the other and the shaft as a whole is adapted to be slid laterally in its bearings in the l'ramc. The wide pinion ll is connected through the sleeve with pinion 46, the wide pinion 43 with pinion 4.7 and the wide pinion with pinion 48. The wide pinions 41, -13 and 15 at all times mesh vvith gears G carried by the complement change selecting wheels 17 19 and 21. On the wheels l5,'l7 and 19 are mounted yielding ratchets 52 (see Fig. ll) which are, in the normal position of the mechanism,

adapted to pass the narrow pinions 46, 4.7 and 4b without operating them, but when shaft 40 is slid in its bearings toward the left, the said narrow pinions are in the path of the yielding rzltehets so that when the positive movement of the complement change selecting wheels is given by the covers 29 the ,ratchcts 52 will engage llll' pinions at the proper time and-actuate the same an extent sufiicient to cause movement ol the next higher complement wheel through one step. As shown in Fig. 31 the shaft normally pressed toward the leit by the spring 50. A spring 51 at the lclii hand end thereof is in the path of main operating lever 38 and therefore it the top of the stroke of said lever it engages the spring 51 and po I vcly moves the shaft 40 toward the right, this withdrawim the narrow pinions 46, i7 and 48 from the paths of the yielding ratchcts 52. AH soon as the handle starts on its downwaixl movement the shaft 40 is released and spring 50 will then cause the lateral movement of the. same to bring the transfer mechanism into operation. At' the end of the operation of the machine the handle 39 is again raised and thereby causes the lateralmovemcnt of the shaft 40 to the right again carrying the narrow pinions out of the path oi tlie yielding nitchets.

It will be rememhoml that the complomen t selecting wheels are under the tension of the springs 202 at all times, and lor this reason when the positive movement is given to the Wheels through the rack bars 25, some means of preventing reverse relation of said wheel is necessary. This mechanism may take many forms but is shown herein as comprising-a shaft 32 shown in Fig. 5 and in detail in l ig. 32 carrying a series of loose pawls 31 thereon and surrounded by a sleeve 33 having slots through which the pnwls ill pa Springs -74 surround the sleeve 33 and are connecied thereto at wit . ew. at this st 7 ,7 ation lever 38 is raised to itsup'permost position and as.

one r-rlltl and to one of the vawlt 31 at the other end.

The slots in the sleeve83 are of snllicient extent to allow a limited movement of the pawls 3] though the springs 74 nr 'nially tend to force said pawlsagainst one end of tho'slots. ltigidly al'tached to one end of the sleeve 33 is a crank a rm tiijconnected by a pin to a vbrtieally iii f vingrod35 which is; near its opposite end provided I *la'terally" Xtonding pins 36 and 37. This vertical hair-- is sliown-in'Fig s 14am 1s and it will be clear smith ig'nrcs thatthe lever 38 at opposite ends of itsst'roke engages "the lateral pins 36 and 37 and first .nd'theri 'eleva tes the bar 35. Aswas before '0 lever 38is depressed to adjust the complereels tothe position' representing the complenientof the"" sale,' 'and at the conclusion of the down strokeof .iid 1e it strikes the pin36 and slightly de-' 5 thereby rotating sleeve 33 and to r'nove'. under tension of springs nto path of tlieteeth on ratchets 28. The posii i i f tl'ie complement selecting wheels arises thet" th'ofratfcliets 2 8'to pass under the pawls and'because if the s' 'epar' e springs 74 only the pawl )ondih fto' the moving complement wheel will llatedduring this operation. I The pawls clearly I mov'omen't of the complement wheels of tlie"opei'atioh.-' At the end of the operitreachcssnelrposition it strikes pin 37 of the vertical bar and elevatessaid bar, thereby reversely oscillating theslecjve 33 and carrying-the'pawls 31 away from t ei surer'1-n&11 1s.2ssothat the springs 202 and 203 inn; complemrmtwheels and their drums may reset both the wheels and th'e-'drnms to their normal zero position. i i i dclircrtny mechahism..'1he operation of the mechanism-asthus fardescribedis complete as faras the iihang'dand sale indicating andsale registering is concernml. The complement wheels 15, 17, 19 and. 21'and their operating m' ech'anism have been-completely described audit will be-clear that means for adjusting 'theiil opposite-directions differentially has been explained; The mechani'smfor delivering or ejecting:

" the prgpgr change mayfinow be described.

I will'be' remembered that some reference to the niain cover forthe'cash receptacles was previously made and'it'was'stated that this cover was released at the down. stroke of theioperating lever 38 and that the closing of saidcov erfcontrolled the d'elivery of change.

" Iii Fig. 14 a ll asgFigL 34 the cover 66 is shown in its closed 'posi on while in Fig. 18 the cover is shown in its open position and it may be noted that the positionfo f the-parts in Fig. 34 is intended to represent that 1 poriod in't] r'e' operation whe'nthe lever 38 has been depressed-almost but 'jnot quite to its lowermost position. The cover (i6 is pmvidQdwith two roarwardly intendinghars'oneof which bearing reference numeral s Shown in Fig. 28,-and the. otherof which bearing 1' mierer'xcenn'rneral 811s shown in Figscl l and 21. The

provided at ii s rearward end with a' ojeetion i' d to engage the latehzSO pivoted to the main fr me-or th'r-inm-lline and bearing a pin 83 whit-iris adapted .is indicated in Fig. l8 to bestruek and do Pres ed by thenperl ling l verfifii as it rem-hes its lowcst position When Ihe.,lever reaches thisposilion the letphEfO' istripped allowingthe main cover 66 toopen.

r Fig. 11. At the rear ends of arms and 81 pins 87 are provided which in the opening' moveme'nt of the cover 06 elevate andpass by the pivoted latches 64, but on the closing movement of cover 66 the pins 87 are prevented from passing between the projections 63 and the latches 6i and therebyrockthe frame arms 59 rearwardlyalthongh in tl'ieiriui'tlier rearward movement the arms 65 and 81 finally engage pins 62 on the frame arms 59 and reset thexframe to its normal position. It will be seen that no movement 'of the frame arms is caused by the opening of the cover 66 but that on the closing of the same, first a downward rotation and then a forward rotation of theffram'earms 59 around their pivot rod 30 is given.

Journaled on sleeves 58011 the rod a are lever arms 23 and 24 one for each of the cash receptacles from which it is de'sired'to' eject change. As will be clear from Figs. 5 and 12 the upper arms 23 of the leversare normally directly forward" of the several complement wheels and at their lower ends-are connected for move ment with bars 57 connected to the ejecting slides 68. Each of the complement wheels is provided with differentially graded projections (shown as pins) which are adapted tobe engaged by and stop the arms 23 of thesaid verticallevers, when the rod (1 is moved rearward during the first part of the closing of the cover 66. A developmentof the units complementwheel 15 is shown in Fig. 13 to exhibit clearly the differential arrangement of the ejector controlling pins. It will be evident that onopposite ends or a diameter of the com and are stopped by thegradnatcd pins. During the remainder of the rearward movement of bar a the pins act as a fulcrum for the levers, thereby compelling a rearward movement of the lower ends thereof, which rearward movement .will clearly carry the bars 57 and slides 68 rearward also. This rearward movement will be sufficient to carry the slides 68 from under the cash receptacles so that the coins therein may drop enough' to carry the lowermost coin intothe path of slides 68. When, during the latter part of the closing movement of cover 66, the frame 59 is given its forward rotation,

the bar a will consequently be moved forward also and the lovers 23, 24 will again rock around their lower ends as fulcrums until they abutthe rod 27, when this willbecome thefulerum for the levers, and the further forward movement of rod a will cause a forward movement of the lower ends 24 of the levers, thereby cairsing an equal forward movement of the ejecting slides 58 with a consequent ejection of the proper coins.

The above description contemplates the ejection 01' one coin only from any of the receptacles and'ii this is desired to be used the placing of the graduated pins on the complement wheels is a simple matter. It will be remembered that the indication shoving above any of the complement wheels and the figure at the bottom of said wheel are live units apart. Attention may be called to the diagram oi Fig. 13. This figure shows the units complement whee1 15 which is adapted to control the nickel and penny receptacles. There are shown two lines of projections on this figure, the left hand line indicating projections for controlling the nickel receptacle and the right hand line the projections for the penny receptacle. It will be seen that opposite the indications 5, 6, 7, 8 and 9 no pin for the nickel receptacle is shown whereas opposite the zero, 1, 2, 3 4 indications pins are shown. It will be clear that when the number 5 for example is exhibited at the top of the indicator the pin opposite the zero will be at the lowest point thereof and will serve to stop the proper lever 23 and 24 as before described and cause the ejection of a nickel in change. This clearly also applies to the pins opposite numbers 1., 2, 3 and 4 which. would respectively be in position to cause the ejection of a nickel when the indicator showed 6, 7, 8 and 9. On the other hand when the numbers 0, l, 2, 3 and 4 are exhibited at the upper side of the selecting wheel 15 no nickel coin should be ejected and consequently no pins are found opposite the respectivenuinbers 5, 6, 7 S and 9. A similardescription of the complement wheels of higher order might be given but it will, it is thought, be clear how the pins thereon are to be aris made so that ii for example lorty cents was to be ejected it would be given out in the shape of four ten cent coins instead of one twenty [ivc cent. one ton cent and one five cent coin.

In order to provide for the ejection of more than one coin at a time from any desired receptacles, use is made of the principle of differential positioning of the projccting pins. It will be remembered that the pins controlling the nickel receptacle are all directly opposite the indications on the con'iplcmcnt wheel but it will be seen from Figs. 12 and 13 that the penny rcceptacle controlling pins are not so positioned. As a premise to the description oi the manner of placing these pins attention may be first called to Figs. 23 and .23. The cash receptacles indicatcd in these figures by reference numeral are surroum'led by slccvcs 54 nged to be clc\ w 1 accordance with the numherol coins 16130 c Mounted on the slides 57 and riding in a longitudinally incl-incth slot therein are cjec'ling devices so provided with depcnding flanges at the rear end thcrcol' adapted to engago/thc bar 2" of a frame piece F supporting all the cjcctors. At the forward end thereof the slides 57 are provided with an inclined ratchet composed of four teeth as it will never be nccdssary to eject more than four coins of anyone denomination at an operation. (onnectcd by pins to the inclined cjcclors are pawl devices (37 having depending teeth adaplcel lo engage the inclined ratchet teeth.

it will be cvidcnl that when the ejecting slides 57 are drawn rcarwardly by thc lcvcrs 23, 2-1 tho dl-pcnding flanges 69 will finally engage and be stopped by the frame bars. During any further rearward movcmcnt of the slides 57 the pawl devices {57 will be iorccd up the inclined ratchets thereby gradually elevating the ejecting bars. This furnishes a very simple means for determining how many coins shall be ejected from any given receptacle in as much as all that is necessary in order to produce this differential elevatingef the ejecting slides is to provide for different extents of rearward movement of the slides 57 after the flanges 69 have engaged the frame bars 1'. This differhtial movement of the slides 57 is caused by the differential positioning of. the pins on the complement wheels. It will be obvious that with-the principle of operation of this ejecting mechanism the amount of rearward movement of slides 57.depends on the position in which the upper ends of the lovers 23 and 24am stopped. The rod (1 has a constant movement at each operation so that if the upper ends 23 of the vertical lovers are stopped at n. early part of the movement, the lower ends 2-1 of tire levers will have a greater extent of movement and .vi,ce'versar In other words the movement of the' upper and lower ends 23 and 24 of these levers may in a s use he said to be complementary. It will be seen from Fig. 13 that opposite the numbers 0 and 5 oi the complement selecting wheel no pins are shown in the penny line and clearly none are necessary inasmuch as the numbers 0 and 5 indicate that no pennies are required. Opposite the ligurcs G and 1. pins J and Care shown in the penny line and this is evidently necessary to cause the ejection of one cent. Opposite the figures 7 and 2 the pins are slightly above the horizontal line passing through the nickel controlling pins and it will be clear from Fig. 12 that this position of the penny pin serves to stop the upper ends of the vertical levers in a position slightly forward of that in which they would be stopped by the pin opposite the number 6. This will evidently allow an additional step of rearward movemcnt oi the penny slide 57 thereby causing the pawl device 67 to be elevated over one tooth of the inclined ratchet and thcre-tlu'ouglrelevating the penny ejector so that two pennies will be ejected by the for ward movement of thejslide. Opposite the numbers S and 3 on the complement wheel the penny pins are still further in advance of the nickel pins than was the case with the penny pins opposite 7 and 2 and it will, be evident, following the previous reasoning, that the upper ends of lcvcrs 23-24 will be stopped slightly sooner than was the case i the previous instance, thereby allowing a iurlhdr additional movement of the slides. 57.;Ltltlan additional elevation-oi the cjectors the-manor receptacle. lt will be evident from the position of pins oppositc the numerals 9 and 4 on the complement wheel that four pennies will be ejected from the receptacle 55. The object of theslce vo 5is to prevent accidental disengagement of the coins from the receptacles. This slehve is at all times supported by the ejector slide as shown in Fig 22, although Fig. 2 3 indicates the position of the mechanism whep the coins have been ejected but before the sleeve had time to drop. As the forward movement of the slides' 57 is given, the proper number ofcoins are ejected and the pawl device (57 finally engages the sleeve 54. An

56, so that finally three pennies would be cjcctcdfrdni further forward movement of the slide 57 disengaged each adapted to hold abill and to be placed in the coin tubes. Any otherdesired shape of hill holders may be used." j

After" the ejection of the change the mechanism should be returned to normal. position and in order to allow this it is necessary to raise the lever 38 which 1 serves to control the sale indicaters and the selecting mechanism. As the lever 3S'reaches its upper position the pawls 31 will withdraw from the teeth of ratchets 28 as before explained and the springs 202 and 203 then reset hothj'the drums l6 and the complement selecting wheelsilfa, 17, 19-and 21 to their respective normal posililOi lS', tl10 chains 8,9, 10 and 11 being at the same time I rcwr iund-around drums 16 thereby elevating the slides s. glhe elevation of the slides s will clearly allow their 25. contained springs to ';10S@t thersale indicators to zeropo- ..sition as fanas'the mechanism described is concerned at 5 least. ltis because of the timing of this resetting operation that both the -yieldingu'atchets 52 and the sliding shaft 40 are provided.ilnasmuch'as the-ratchet 52 is to k transfer in a positive directionthe normal position of the ratchetsznmst beinnnediately adjacent the transfer pinions; ''When the lever 38: starts to move downwardly 'the complement wheels will be reversely rotated and the ratchetsfiZ-will; be moved :past the piuions 16, -17

--and 48; r it willxbe remembered that the-lateral shift of sliaft' lO to the left occurs immediately after the lever 33 startsto'move so that inmost cases the'pinions 46 and 47 and *l8. Would be shift-ed into the path of the yielding ratchets bclore the ratchets have pas ed them, but in t'lsth'is case the ratchctswill yield and pass by without moving the pinions. When the complementselecting- Wheels are moved in a positive direction the transfer .should. takeplace provided any of the-ratchcts pass from the nine to the zero position and in this direction 4 5 of movement the ratchcts will not yield but will opera to the-.pinions. So far therefore the shaft might have remained at its left-positionwithout detriment'to' the operation; but at the resetting period of, the operation the complement wheels may he moved in either direc- 5 tion toward their zero positiondepending on how they lnnlheen previously movcd,and although when moving in the negative dirctionsthe ratchets 52 do not reach the point'occupied hy the transfer pinions yet when moving inan opposite direction the ratchcts would pass the pinions and if they had not been pi'eviously shifted'to their right hand position would actuate the same, thereby-displacing the'uext. higher complementwheel. it is for this reason'that the shaft 40 is made slidahle andthe ratchcts are made yielding.

It is desirable to prevent the sale indicators from be ing viewed during the operation of thc'machinc as there :by a completion of the operation is secured and to this end there-isprovided a flashorcurtainfifiwhich as shown in Fig. l4'n'ormally'cox ers'and prevents exhihi v tionof the sale indicators. -'-"lhisfiash 76 is carried by en (is of the arc.

arms which are mounted for forward movement on the nmchiuc frame, the movement being caused by the l'orwn'rdly extending levers 77 connectedto the bars 75 7 through pins 79 and provided at their forward ends with lateral pins 78adaptcd tobe engaged by the lever 38 as it reaches its lowest position andopcratedso as to raise" the flash 76. This positiouol' the mechansim is shown in Fig. 18. =Whcn the lever 38 is restored to its upper position the weight of the flash 76 and ar'ms 75 together with a spring if necessary restores the Hush to its lower com-ealing position.

in order to compel a-complete stroke ol the operating lever 38 mechanism shown in Figs. 28, "39 and SOnm-y be employed; Mounted on the machine lramc is a track 98 having projecting ends 9i between which the yoke arms Y move-and mounted on said yoke arms are quad rant pieces 89 provided with notches 96 and 97 in ear-h of which a. pin 90 projecting from the yoke arm Y and. spring pressed as showu'in Fig. 29 may enter. The arc of the quadrant 8!) is slightly flattened so that the center of the arc is slightly nearer the pivot 99 than are the \Yith lhis'construction it will be seen that when the parts are in the position ofFig. 28 no ohstruction to the upward rotation ol yoke arms Y will he caused by the quadrant 89 but that if attempt ismade to reverse the movement and move the yoke arms Y downwardly the quadrant will jam against the track 98 and prevent such movement. When the yoke arm Y 1 reaches its uppermsot position the edge of the quadrant will engage the upper projce tirm 91 of the track 98 and shift the quadrant until the notch 97 engages the pin 90,"'\vhcn the yoke arm Y Inay'be moved downwardly without obstruction by the quadrant 89. This mcch-,

anism though simple is very effective tO'COlllllOl a complete operation in each movement of the yoke arm Y' and consequently a complete movement of the opera ting parts of the machine. I

The register usedin connection with this invention needs only a brief description, as it is precisely the same as that employed in the patent previously rci'erred'to; The register comprises a series of disks B carried on the shaft which supports the sale-indicating drums, and is connected to said drums by a ratchet and pawl connection or some other type of mechanism so as to move differentially with the indicating drums in one direction only. Asthe mechanism is described in the patent. the operationoi the register takes place witlrtlic setting movement of the indicating drums, and not with the movement of restoration. 7

Details of the purchase kcy-hoard areshown in Figs. (3 and 7, .l'rom which figures it will be seen that the keys P are carried by inner and outcrsegmental name-pieces p and 1)" serving to both support and guide them. The keys have each a cut-away portion forming upper and lower shoulders, and against these cut-away portions rest springs70 carried in ribs p of the frame-piece p It. will be clear that the. springs 70 prevent (X- cessive movement of the keys P in either direction. 'lhe'yoke-piece Y carries a cam device for positively pushing the keys to their outward position after they have performed'their function of laterally moving the.

operating pawls 1, 2.3 and 4. I

' It'is thought that the operation of the mechanism will be clear from the foregoing description, but it may he brieflyrecapitulated as follows, and it will he assumed that $2.75, comprising two silv r; dollars, a half dollar and a quarter, have been tendered in payment of a purchase amounting to $2.51. v

The purchase amount, namely, $2.51, is first set up on the purchase key-board by depressing the key marked 1 in the cents row, the key marked 5 in the dimes row, and the key marked 2 in the dollars row. When the operating handle 38 is moved downwardly from the position of Fig. 14 to that of Fig. 18, the yoke Y carrying the operating pawls 1, 2, 3 and fl is given a complete downward movement, and after this movement has been half completed the pawl 2 engages the proper notches in the dimes slide s, so that during the further movement of the yoke-piece Y the said dimes slide is carried therewith. The lateral movement of pawl 2 when it strikes the depressed dim-cs key, results in shifting the fingers 6 and 7 laterally through the interlocking slides 13 and 12, but pawls 3 and 4 are left in their inoperative position. When the yoke-piece Y reaches the key marked 2 in the dollars bank, the pawl 3 is moved latcrally'to engage. the dollars slide 8, and carries the said slide with it through the remaining steps of movement. Next the cents pawl 1 strikes the depressed units key marked 1. and is (rammed laterally to engage the last tooth of the units slide s in order to give the said slide one increment of movement. As the pawl is moved laterally the slide 14 which is pinned therewith is als moved, thereby carrying the finger 5 to the position shown in Fig. 1. This lateral motion of pawl 1 would carry the fingers (i and 7 with it, but they have already been operated through the paw'l 2. As the slides s move downwardly they carry the chains 8, 9 and 10, and thereby rotate the complement selecting wheels 15, 17 and 19 by rotating the corresponding drums 16, and thereby tending to tension the springs 202. When the yoke-piece Y reaches the last step of its movement, the fingers 5, 6 and 7 engage the chains 9, 10 and 11 and move them enough to give the complement wheels 17 and 19 an additional step of movement and to move the complement wheel 21 one stop. As a result of this part of the operation, the complement indicating wheels show thereby releasing the amount cover 66, which immediately opens. At this same time the flash. or shutter 76 is raised to exhibit the purchase amount on the indicating wheels-through the lovers 77 connected to said flash, and also operated by the lever 38. The slide 35 is depressed through its pin 36 when the lever 38 strikes f the same, thereby throwing the retaining pawls;31 into position to engage the ratchcts 28 of the complement selecting wheels to prevent their. rearward movement. As the amount cover (Stinrovos open the pin 87 passes between the projection 63 and the pawl 64 on the eieCtor frame arms 59 without movin the same.

The deposit amount is now to e entered in the machine, and this is done by sliding reurnnrd the covers 29 for the proper receptacles and dropping the money received into the said receptacles. [n the present case the one-dollar cover 29 will be operated l \\'it' in succession, thereby moving the complenn-nt Wheel 19 two steps in advance. The oil-cent eover29 will be moved rearward once, thereby rotating the complement wheel 17 five steps, and the 25-ccnt cover 29 will be moved rearward once, thereby giving two additional steps 0i movement to the complement wheel 19, and five steps to the complement wheel 17. After the one-dollar cover 29 has been moved rearward twice, the complement wheels will show 9949. After the 50- cent cover has been moved rearwardly, they will in-.

dicate 9999, and finally after the 25-cent cover has been moved, the said wheels will show 0024. This last number is clearly the amount of change which should be received, being the difference between the amount paid in and the amount of purchase. When the onedollar cover and the 50cent cover 29 are moved rearwardly, the proper complement wheels only are advanced, but when movement of the 25-c'ent cover is 7 given the transfer mechanism, comprising the pinions '45 and 48, will be engaged and moved by the yielding latch 52 of the complement wheel 15, thereby giv'mg the complement wheel17 an additional step of movement. This transfer also takes place betweerf the wheels 17 and 19 and 19 and 21, thereby causing each oi the higher wheels to be advanced one extra step.

To eject the proper change the cover 66 is operated to its closed position. As the arms 65 and 81 rock rearwardly, the pins engage the latch 64 on the frame arms 59 and rock the frame rearward about its pivot 00, and finally the arms 65 and 81 themselves engage the pins 62 and restore the frame 59 to itsnormal position. As the frame rocks rearwardly the upper ends 23 of the ejector-controlling lovers will be moved around their lower ends 24% a fulrcum until the dimes lever 23 strikes the proper pin on the complement selecting wheel 17, and the pennies lever 23 strikes the proper pin on the complement selecting wheel 15.

These two lovers will then be retained at their upper ends, and thelurther rearward movement of shaft (1 will move the dimes and the pennies ejectors rearwardly. In both of the cases in point the ejectors are arranged to eject ironi one to four coins at a time, and it will clearly be necessary in the present supposecrcase to eject two dimes and four pennies. When the dimes ejector moves rearwardly, the flange 69 of the inclined slide is. engaged by the frame-piece i1, and-then during the continucd rearward movement of the ejcctors the dimes slide 56 is'elcvated, so that the pawl 67 thereof rides over two teeth of the inclined ratchet and the penny ejector is moved rearwardly to the position of Fig. 22, which is such a position as to eject four pennies. When the frame 59 is rocked forwardlyaround its pivot, the

shafta causes the levers 23-24to move until the parts 23 engage the rod 27, when they are stopped and tho ejecting slides then moved forward toejcct the proper change.

7 wheels, and thteirspringstogether with the springs of the corresponding drums 16, will reset the selecting mechanism to normal position, also raising the slides s one for the $20 coins or bills, and one for $50 bills. The

principle of operation would, however, be precisely the same as applied to the mechanism as shown. Furthermore, it is clearly possible to operate the covers 29 and their corresponding racks a plurality of times, 'producing an additional movement of the complement-selecting wheels, the only limit to this opera: tion ,being a complete rotation of the complement wheels inquestion.

I have shown the controlling mechanism as comprising purchase keys, but it will be clearly understood that other forms of controlling mechanism well known in the art may be substituted therefor. For example, a well-known type of machine is provided with adjustable levers movable over a scale corresponding with amounts of purchase, and. this could clearly be used to move the slides s of the present mechanism. So, too, many substitutes may be devised for the cover 66 whichcontrols the ejection of change. It is clear that a crank-handle or lever would be an equivalent, broadly, of this cover, as far at least as its function of are not limitations of the function of this device, any

mechanism which is adapted to be adjusted or positioned or controlled in opposite senses or directious by the purchase'and deposit mechanism being intended to beincluded within the scope of the invention and f to be described by the termselecting mechanism.

So, too, the various specific devices utilized herein for accomplishing the broad" purposes set forth, may be replaced .by other forms of mechanism without departing from the broad spirit of the invention.

I believe that I am the first in the art to devise a machine of the character described which will automatically compute and deliver the amount of change represented by the difference between any amount of deposit and any amount of purchase. Prior to this invention there existed machines for merely deliver- ,iug change; that is, if any certain amount of change to their normal position. The transfer shaft 40 is finally another condition under the control of the purchase he. movement of theejecting mechanism is unisn1 for actuating said indicators, substantially as set ing the making of the proper change for the great variety of deposit amounts and purchase amounts.

In my invention, the manipulative amount determining means aresuch that they may be operated according to any amount of deposit and any amount of purchase, and the machine automatically computes 70 and controls the change ejected from the machine, thus entirely dispensing with any form of mental calculation with its ensuing errors. These manipulative means control the intermediate change controlling or selecting mechanism, which in turn controls the money delivery or ejecting devices, and I wish to claim this generic invention in its broadest aspect, regardless of the form of the said manipulative means, or of the selecting means, or of the ejecting means. The manipulative means need not necessarily be in separate groups for the deposit and the purchase amhunts, but if so, their respective order of operation is immaterial in so iar as concerns the broad scope of the invention and the change controlling or selecting mechanism may assume various forms, being controlled in one sense or in one direction by the deposit mechanism and in another sense or in another direction by the purchase mechanism, or may be put into one condition under the control of the deposit mechanism, and into mechanism, the resultant or final position or condition controlling and determining the ejection of the proper amount of change, Likewise, many of the devices which I have shown and described herein as forming parts of the entire mechanism for accomplishing the above described results, are broadly new in themselves separately considered and as such entitle the '(lnilus thereon to a broad scope. Therefore it may be stated that while the form of mechanism here shown and doscribed is admirably adapted to fulfil the objects primarily stated, it is to be understood that it is not intended to confine the invention to the one form of embodiment herein disclosed, for it is susceptible of embodiment in various iorms all coming within the scope of the claims which follow.

.What is claimed is as follows.

1. In a cash indicating machine, the combination of a sale indicator, :1 change indicator and cooperating mechforth.

2. In a cash indicating machine, the combination with a sale indicator mechanism, of a change maker, and cooperating mechanism for controlling the sale indicator mechanism and the selective change distributive action of the change maker, substantially as described.

3. In a cash indicating machine, the combination of a sale indicator, :1. change indicator, a change maker and re operating mechanism for actuating said sale and change indicators and said change maker, substantially as set forth.

4. In a cash registering machine, the combination of asnle register, a change indicator and (Oilpfillllilflg mccluinism [or actuating said register and said indicator, substantially as set forth.

In a? cash registering machine, the combination of a 125 sale register, a change maker and coilperntlng mechanism for actuating said register and change maker, substantially as set forth.

. 6. In a cash registering machine, the comblnatlo 'r (if s'nlc reglsler. a chnnge indicator, n-changc maker-and cooperating mechanism for operating said register, indicates, and chang nnaker, substantially as set forth. 

